This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X270, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI200 Standard Cylinder SI200X270
The AirTAC SI200 Standard Cylinder SI200X270 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 270mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X270, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke270 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X270
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI200 Standard Cylinder SI200X270
The AirTAC SI200X270 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 270 mm stroke. It delivers 15708 N push and 15080 N pull at 0.5 MPa, operating via a G3/4 port. AirTAC replaced this legacy unit with the SAI200X270, a direct replacement sharing the exact ISO 15552 mounting interface, M36x2 rod thread, and 50 mm adjustable air cushions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. Because this specific SKU lacks the -S magnet, it cannot accept CS1-B or DS1-B sensors. Note that a standard cylinder drifts without live air; for load holding, explore the SAIL or BSAI lock variants, or an external pilot check valve.
Airtac SI200 Standard Cylinder SI200X270 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X270 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X270 |
| Bore size | Ø200 mm |
| Stroke | 270 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI200X270 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAI200X270 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI200 Standard Cylinder SI200X270
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×270 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI200 Standard Cylinder SI200X270 Is Used
Heavy Press Stamping
Drives large metal forming presses requiring 21991 N push force at 0.7 MPa to shape thick steel plates.
Mold Clamping Fixtures
Secures heavy injection molds using the 15080 N pull force, relying on external guides to prevent rod bending.
Replacing the Airtac SI200 Standard Cylinder SI200X270 with the SAI200X270
To replace the discontinued SI200X270, order the SAI200X270 keeping the identical 200 mm bore, 270 mm stroke, G3/4 port, and ISO 15552 mounting accessories. Confirm your thread option (PT, G, or NPT) and rod material (carbon steel, SUS420J2, or SUS304). This non-magnet SKU cannot host sensors, so if position detection is needed, switch to an -S designated SAI model compatible with current AirTAC switches. For loads requiring holding on air loss, specify the SAIL air-released lock, BSAI clamp-lock, or an external rod lock. At 270 mm stroke, side-load and rod-bending risks are moderate; ensure adequate guide support. If downsizing, a 160 mm bore offers 10053 N push at 0.5 MPa, while staying at 200 mm maximizes the 3204 kgf peak force at 1.0 MPa.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X270
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI200 Standard Cylinder SI200X270 FAQ
Yes, the AirTAC SI200X270 is discontinued. The direct replacement is the SAI200X270. It shares the identical ISO 15552 mounting interface, 200 mm bore, 270 mm stroke, output force, and G3/4 port, fitting directly into existing fixtures.
It features a G3/4 air port and M36x2 rod thread. The force ratings are: 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, 28274 N push at 0.9 MPa, and a theoretical maximum of 3204 kgf at 1.0 MPa. Speed range is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X270
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X270 replacement — usually within 7-8 hours.